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Listing "Earth Articles" from 71 to80 |
X-Ray In 1895 Roentgen discovered the rays which are called after him and which he nicknamed "X-rays" because he did not what they were or where they came from... by Manpreet Read On...
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Vaccines Jenner had heard of a popular belief in Gloucestershire that a person had accidentally contracted pustules by milking a cow infected with cowpox... by Manpreet Read On...
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Invention of Helicopter In 1876, Enrico Forlanini fitted a gas-driven engine to a machine which rose to a height of 13m after a vertical take-off from the park of Milan... by Manpreet Read On...
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 • Thanksgiving Day Coloringbook • Thanksgiving Day Festival • Thanksgiving Day Greetings • Short Poems for children • Thanksgiving Sayings • When is Thanksgiving Day • Activities, History, Quiz • First Thanksgiving • Thanksgiving Feast, Art & Craft Ideas, Gift Ideas • Blessings • Calendar, Continental Congress National Thanksgiving Proclamations, Thanksgiving Turkey Presidential Pardon • 1777 Thanksgiving Proclamation, 1778 Thanksgiving Proclamation, Prayers, Catholic Thanksgiving Prayer, Family Thanksgiving Prayer
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